GURCZYŃSKI, Jacek. The logic of fictional objects. Part I: Lewis’s possible worlds semantics (in Polish). Diametros, [S. l.], n. 33, p. 1–19, 2012. DOI: 10.13153/diam.33.2012.487. Disponível em: https://diametros.uj.edu.pl/diametros/article/view/487. Acesso em: 6 may. 2024.